Improvement in stone and glass polishing machines



v A. VOGEL EY 1 srom ANDYGLASS POLISHING MACHINE. 189.817.,

Patented Apri1 17,1877.

N. PETERS, PHOTO-LITHOGRAPHER. WASHINGTON, D C:

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Specification forming part of Letters Patent No.189,8 [7, dated April17, 1877 application filed January 23, 1877.

To all whom it may concern:

Be it known that l, ALEXANDER VOGELEY, of the city of Brooklyn, countyof Kings, and State of. New York, have invented an Improved Apparatusfor Polishing the Beveled Edges of Glass Plates, of which the followingis a specification The object of my invention is to provide a convenientapparatusfor polishing the beveled edges of glass plates, so constructedthat several small or one large glass plate may be polished at the sametime.

The edges of glass plates are first beveled by grinding with sand andemery; but said edges require polishing before being fit for use, and myinvention consists in acombination of several polishers operating on thebeveled edges of several small orone large glass plate, polishing saidedges simultaneously, the plates being laid upon the table,so that thebeveled edge of each plate may be conveniently held under saidpolishers, the crank or eccentric moving the polishers to and frobymeans of the sliding shaft.

Figure 1 represents a side elevation of my apparatus. Fig. 2 is across-section of the same. Fig. 3 is a top view of the frames or boxes,and the polishers inclosed in the same, showing the construction of thesame. Figs. 4, '5, and 6 are views of different forms of frames orattachments for holding the polishers.

Similar letters of reference indicate like parts. I

A A are the polishers. They are blocks constructed of wood and metal,and are similar in their general construction to the polishing-blocksnow in use operated by hand separately.

The polishers are inclosed in frames or boxes B B,so as to work freelyand adjust themselves readily to the edge of the glass.

The frames or boxes B B are connected together firmly by the slidingshaft 0, the said shaft sliding in the upright brackets D, which aresecured to the table E, and the shaft 0 is moved forward and backward bythe crank of eccentric F.

The polishers are provided with handles, so that they may be removedfrom their respective frames or boxes-B B at will, and the polishingsubstance upontheir bottom surfaces renewed when necessary.

The polishers are beveled upon their front and rear ends, as shown atFig. 3, while the boxes or frames B B are made rectangular. Or thepolishers may be made rectangular, and the front and rear ends of theboxes or frames beveled.

This is an important feature of my invention, and the object thereof isto avoid streaking the glass, as would be the case if the polishersalways worked in the same position, or in the same direct line. looselyin the frames or boxes, a diagonal lateral movement in the direction ofthe dotted lines as, Fig. 3, is imparted to the polishers, for

the reason that when the end of the frame orv box strikes the beveledend of the polisher, the

polisher adjusts itself to the frame or box,

and in the act of such adjustment rubs the surface of the glasssidewise-or diagonally, and when the other end of the frame'or boxstrikes the other beveled end of the polisher, when the sliding shaft 0has reversed its stroke, the polisher adjusts itself to the frame orbox, and a reverse sidewise or diagonal movement is produced.

The polishers A A may be united to the shaft 0 by clamps or rods, asshown in Figs. 4. and 5; or the polishers may be held in a frame, asshown at Fig. 6.

The manner of operation of the apparatus is as follows: Glass plates Mare laid in position on the table E so that their beveled edges areplaced under the polishers, as shown at Fig. 2. The bottom surface ofthe polishers being supplied with rouge or other suitable substance,they are operated simultaneously by the shaft 0, and the edges ofseveral glass plates can be polished at once. It is immaterial whetherthe glass plates are of different thicknesses or different bevels. The

polishers, working loosely in the frames or The polishers fitting theuse of my apparatus one workman can A Aor holde rs'B with oblique orbeveled accomplish the labor of several.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. For the purpose of polishing the beveled edges of glass plates, thecombination of the loose polishers A A, the sliding shaft 0, and theholders B B, substantially as shown and described.

2. The construction of the loose polishers ends 'for the purpose ofcausing a diagonal lateral motion to be imparted to said polishers toavoid streaking the polished surface of the glass, substantially asshown and described.

ALEX. VOGELEY. I Witnesses:

BRADBUY C. OHETWIND, EDWARD BARTLETT.

